Quote Originally Posted by INTMD8 View Post
It seems then that at your hp level you have a large enough feed line to see zero pressure drop.

I guess another way of putting it is your fuel system will carry you further with the regulator mounted near the engine.

Say you have 58psi base pressure at the rear mounted regulator and flow enough fuel to the front of the car you may get a loss of pressure at the rails due to pressure drop across the line.

You may still get a pressure drop across the line with a front mounted regulator but it is not "seen" by the engine as the regulator is near it.

Just my opinion and they way I like to do things. Boost referencing the regulator will also give you much more range on the fuel injectors, allowing the use of a smaller injector with better driveability.
I switched to rear mount regulators for two reasons. One, simplicity. Two, because of fuel heating issues which many have experienced with large pumps and a front mounted regulator.

Until it doesn't work I'll keep using it. I don't build anything that doesn't run on pump gas, so no max effort deals. I build them to drive long distances so fuel heating is an issue. I limit them to 1000 hp or so, and it seems to work fine at those levels.

On a max effort build I would run a front mount regulator, but they don't have fuel heating, longevity, pump gas to deal with.

Jody